Stabilizer for dumping-vehicles.



,the hopper is filled.

- UNITED STATES PATENT oEEIoE.

JAMES G. WINSOR, OF DETROIT, MICHIGAN.

STABILIZEB FOR DUMPING -VEHICLES Specification of Letters Patent.

' Patent-eu Nov. o, 1917.

Application filed April 23, 1917. SerialNo. 163,767.

same7 reference being had to the accompany-l ing drawings, which form a part of this specification.

rlhis invention relates to stabilizers for dumping vehicles. more devices .which are arranged to hold the self-dumping hopper in its carrying position. and which are adapted to allow the chassis to turn with respect to the hopper on its major axis without carrying the heavy hopper with it. The device may also serve to start the hopper in dumping when the same is released on one side.

These Jfeatures will be more mi'nutcly explained in the' specification following.

In the drawings,-

Figure l is the end View of the vehicle chassis carrying the dumping hopper.

Fig. isan elevation ot' the stabilizer.

Fig. 3 similarly is an elevation ot' the stabilizer' but taken from a 90 degree point.

Fig. #t is an elevation ot a modified form of stabilizer.

The vehicle chassis is designated a, the hopper .7). This hopper is mounted to roll upon the cross rails c of the chassis by means et' the circular rockers (Z which pass under the V-like hopper and rise comparatively high on the sides for the purpose of bringing the center ot the rockersv only slightly below the center ot gravity of the load when This accomplishes a very useful t'unction in that the load is only slightly over-balaiwed and consequently when the hopper is released on one side the load will roll easily and not precipitately to the dumping position. It is also advisable to have the center ot' the rockers high as this insures more metal in the hopper below they center ol the rocker than above and eonsexpiently when the 'load is discharged the hopper will automatically return to its central position.

flhe stabilizers are shown on each side in Fig.- '1. and comprise linear members connecting the top ot the hopper with the chas- It comprises one ory sis (specilically, the rails c) and which are yieldingly extensible and contractible and which are capable of being shortened and lengthened by means ot' a device having a mechanical advantage. A portion of the linear member is a chain c. The portion which makes the same yieldingly extensible or contractible comprises a pair ot' yokes f, g, each of which has at the end an abutment plate L and each ot' which slides through the abutment plate of the other yoke. Between these abutment plates en gages the strong coiled spring t'. By reason of the arrangement ot the two yokes and the abutment plates, this spring makes the linear member yieldingly extensible.

The device whieh'servesvto make possible the shortening ot' the linear member with the aid of mechanical advantage comprises a bent lever j which has a t'ulcrum in the yoke Z at. the point and which has its power arm connected with one yoke g/ by means otl the link m. On the lower end ot' this shortening device a hook it is provided which may be hookedinto the uppermost link ot' the chain part c. Now, when this linear member is in the position indicated by dotted lilies of Fig. 2, obviously it has its greatest length and in that position the hook a may be released from the chain part c. then the parts otl the linear memberv are in the position -shown in Fig. 2, full lines, the linear member is shortened and all the parts rmlyheld together.

In Fig. l. insteadA of a bent lever device for shortening the linear member a hook-like lever j; is'shown. When this isdrawn up toa position ot substantial parallelism with the linear member as shown in `Fig. 4,-the

ilever by reason ot""thel peculiar shaping of the gulletI ot'th-e hook shortens the linear member. The lever may be held in this position ot parallelism by hooking the end of it within a clip attached to the chain.

Now, obviously, from the above description, the chassis of the vehicle may rock under the hopper.` The rocking of the chassis is made possible by lreason of the yield-dile ties between the chassis and the top ol the hopper. This is` really the. action that will occur when the vehicle is traveling alongl a rough road, as the chassis Will tend to follow the action of the wheels except in so tar as the vehicle springs make this unnecessary, ywhile on the other hand the loadedhopper has a great amount of in- "on top to accomplish precisely this result,

ertia because or" its great relative Weight. Consequenty a great part of the nnerenness of the road is not communicated to the loaded hopper oy reason or' these sprin tabilizer devices and tie rolling nionnting et' the hopper upon the chassis. This avoids a great many heavy twisting strains on the hopper and the chassis.

lNe have alreadyv described this hopper as a substantially self-dnniping device. lt the center oit gravity of the load is ahoe the center of the rockers and slightly to one side, the hopper would dump itsel'l?, but as roads are seldom absolnteliT level and as the loads are not very treqnently evened otl" the springin the linear member at one Side,

when the linear member at the other side is released, serves t0 overcome anvT slight disH placement of the Center of gravity Yfrom the roper position oi antoniatie operation.

lllhat claim is:

l. In a dumping vehicle, the combination of a Chassis7 a hopper pivotally mounted thereon, and yieldably extei'isible stabilizers extending from the side of the hopper to the chassis.

2. ln a dumping vehicle7 the combination of a chassis, a hopper that dumps to either side, and yieldably extensible stabilizers eX- tending from both' sides or" the hopper to the Chassis.

` 3. The combination as Claimed in claim 2 with Stabilizers Comprising` linear members which are yieldingly eXtensible and which 4are put under tension when tightened, the -hopper being near balance 1n its central po-- 1. ,L i v r sinon se as a easiiy he tipped to the otliei'.

one si or ance in its central position as to he easily A tipped to one .side or the other.

5. A crmibination nl devices claimed in elaini il, with stabilizers comprising linear n'ieinbers which may be shortened by the aid oi' a de'viec having;v mechanical advantage.

6. 'lhe con'ihiinition elaimed in claim e, provided with stabili/:ers comprising each a, pair et relies having at their forked enes abntmentV plates, and each yoke `Lnided throi rh the abnnv: it plaie of the other yoke, and a coiled spring` engaging bet'vveen the abutment plates. i

i. vThe combination ela'imed provided with si shorteiiiriIl the bent lei wibslant Q l rdnniping in claim G, hihi/,ers having devi .tor i members :,-oinprising xallv as descril'ied.

me e, the coinhination s: a hopp 1r that dinni'is to either side, and stabilizers extending` from beth snies o'l` the hopper t0 the chassis and co1nprising chains, a portion of each et' which is made up of a spring which may be contract-- ed, and a lever or putting the spring` under tension h): shortening the length ofthe entire stabili/,e

ln testimony Vwhereof7 l eenen.

sign this specili- 

